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Sodium dichloroisocyanurate dihydrate

≥98.0% (AT)

NaDCC, Dichloroisocyanuric acid sodium salt dihydrate
Empirical Formula (Hill Notation):
C3Cl2N3NaO3 · 2H2O
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level


≥98.0% (AT)

reaction suitability

reagent type: oxidant


~0.5% free chloride

SMILES string




InChI key


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This Item
reaction suitability

reagent type: oxidant

reaction suitability


reaction suitability

reagent type: oxidant

reaction suitability

reagent type: catalyst
core: molybdenum


~0.5% free chloride






≤0.005% insolubles

General description

Sodium dichloroisocyanurate dihydrate is a solid chlorine bleaching agent generally used as an alternative to sodium hypochlorite for water treatment.


Calibration substance for the photometric determination of active chlorine. Guidelines for the analysis of waste water and surface water, Part 1; 28/3; Federal Department of Home Affairs 1982.
Sodium dichloroisocyanurate dihydrate can be used as a chlorine source to convert alkoxyl-s-triazines into N-chlorinated alkoxy-s-triazines.

Signal Word


Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1A - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

Storage Class Code

4.1A - Other explosive hazardous materials



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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